Joe Darcy, who served as the assistant guide on my first RS trip (Scotland) in 2017, used to have his own walking-tour business in Dublin as well. I wanted to connect him with friends who are visiting Dublin soon, but I can't find his website. Trip Advisor says his business is permanently closed. Anyone have any info? Maybe he's retired. He was a lovely man and, along with head guide Anne Doig, did a great job with our tour.
We loved Joe, our wonderful tour guide on the RS Best of Ireland tour in 2019. He was talking about retirement back then, so you may be correct. But you never know; he had a lot of great energy. I have a fun photo of him wearing a Game of Thrones shirt that says "I Drink & Know Things!"
Ditto on the previous comments. Excellent Guide.
I loved the fact he had the keys to Sweny's Pharmacy so we could go in in the evening when it was closed.
I have his website and email address and I'll send it to you in a PM. I tried his website and its down.